TY - GEN
T1 - Multichannel signal synthesis in free space
AU - Shaw, Z.
AU - Feilner, W.
AU - Lynn, C.
AU - Neuber, A. A.
AU - Dickens, J. C.
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2017/8/17
Y1 - 2017/8/17
N2 - A two antennae, software controllable phased array was designed and fabricated to study the generation and transmission of short, nanosecond, nonperiodic pulses. This system allows transmitting a train of appropriately scaled and time-shifted bipolar signals to generate received signals with major frequency components adjustable from approximately 600 MHz to 1.5 GHz. The main components in the system include two digital to analog converters (DACs), two data pattern generators (DPG), and two power amplifiers which drive two TEM Horn antennas. The horn antennas are based on a Chebyshev taper design and a Microstrip-Type balun is utilized for the transition from the coaxial feed. This approach yielded a reasonably flat frequency response in a wide range from 0.2 to 3 GHz. Thus far, 100 ps synchronization between channels was achieved, and signals of varying shape and amplitude have been received via the shifting and inverting of Gaussian input pulses defined by the user generated data input vectors. This paper presents an experimental evaluation of the hardware used to generate the multichannel array, the ability to steer the signals and generate signals of varied frequency via superposition in free space.
AB - A two antennae, software controllable phased array was designed and fabricated to study the generation and transmission of short, nanosecond, nonperiodic pulses. This system allows transmitting a train of appropriately scaled and time-shifted bipolar signals to generate received signals with major frequency components adjustable from approximately 600 MHz to 1.5 GHz. The main components in the system include two digital to analog converters (DACs), two data pattern generators (DPG), and two power amplifiers which drive two TEM Horn antennas. The horn antennas are based on a Chebyshev taper design and a Microstrip-Type balun is utilized for the transition from the coaxial feed. This approach yielded a reasonably flat frequency response in a wide range from 0.2 to 3 GHz. Thus far, 100 ps synchronization between channels was achieved, and signals of varying shape and amplitude have been received via the shifting and inverting of Gaussian input pulses defined by the user generated data input vectors. This paper presents an experimental evaluation of the hardware used to generate the multichannel array, the ability to steer the signals and generate signals of varied frequency via superposition in free space.
KW - Bipolar impulse
KW - Signal synthesis
KW - Wideband
UR - http://www.scopus.com/inward/record.url?scp=85029413408&partnerID=8YFLogxK
U2 - 10.1109/IPMHVC.2016.8012905
DO - 10.1109/IPMHVC.2016.8012905
M3 - Conference contribution
AN - SCOPUS:85029413408
T3 - 2016 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2016
SP - 201
EP - 204
BT - 2016 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2016
Y2 - 5 July 2016 through 9 July 2016
ER -